Morning.dev

DEV Community • 2026-07-30 16:20

One Contract, Multiple Enforcement Points for Safe AI Agent Execution

Overview A lot of AI agent safety discussion still stops too early. People talk about: prompts instructions guardrails whether the agent "knows better" Those things matter, but they are not where the real control lives. If an agent can ignore the instructions, pick the wrong execution path, skip the real verification lane, or claim success without independent evidence, then the re...

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6m read

DEV Community • 2026-07-30 16:18

Social Engineering Attacks

What Is Social Engineering? A Beginner’s Guide Imagine this. One of my friends texted me the other day that her instagram was blocked and i should help her unblock it, i asked how may i help? And the next thing is that she said meta sent me a verification code as her facebook friend and i should send it to her so she can unblock her instagram. Guess what? If i had sent the code to her, then i ...

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2m read

DEV Community • 2026-07-30 16:16

Your AI Memory Store Needs a Delete Key

Most memory implementations for AI applications are append-only. New memories go in, nothing ever comes out, and every stored item stays equally retrievable forever. That works fine for the first few hundred entries. It stops working somewhere in the thousands, and the failure is quiet, because retrieval quality drops while every dashboard still looks healthy. The fix is not a bigger vector index...

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4m read

DEV Community • 2026-07-30 16:15

My favorite post from July!

I've Spent 10+ Years in Software Engineering. After Sickness, Burnout, and a Layoff, I'm Rebuilding My Career. Ask Me Anything Writing therapy and a new book trilogy Cesar Aguirre Cesar Aguirre ...

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1m read

DEV Community • 2026-07-30 16:15

What I Learned Building an AI Background Remover on Cloudflare

I recently shipped CutoutKit, a small web app that removes image backgrounds and returns a transparent PNG. The interface is intentionally simple: upload an image, wait a few seconds, and download the result. The implementation behind that flow was less simple. Once I moved past the prototype, I needed authentication, usage limits, payments, webhook reliability, privacy boundaries, and an archite...

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7m read

DEV Community • 2026-07-30 16:14

[Advanced Rust] 1.15. Trait Bounds - Compilation and Dispatch

1.15.1. Static Dispatch What happens when we compile generic code? The compiler copies part of the type or function for each T (for each concrete type), so that each type has its own function. This process is called monomorphization. (Calling methods on a dyn Trait is different: that uses dynamic dispatch, covered later in this article.) When you build Vec<i32> or HashMap<Str...

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6m read

DEV Community • 2026-07-30 16:12

Episode 8: Git Workflow

This series follows a fictional conversation between an experienced engineer and his nephew. Every episode explores one stage of how software moves from an idea to production. 👦 Nephew: Uncle, code's ready. git add ., git commit, git push to main, done? 👨‍🦳 Uncle: Stop. Two problems already — "code's ready" and "push to main." Let's go all the way back to the beginning, because you skipped th...

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9m read

DEV Community • 2026-07-30 16:08

How to Inspect a JWT Without Uploading a Production Token

A JSON Web Token often looks like opaque security data, but its header and payload are normally readable Base64URL segments. That makes local inspection straightforward. It also creates two common mistakes: Uploading a live bearer token to an unknown server-side decoder. Treating decoded claims as proof that the token is authentic. This workflow separates three different jobs: Inspecting the...

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4m read

HackerNoon • 2026-07-30 16:05

The HackerNoon Newsletter: What Kind of Leader Are You Under Stress? (7/30/2026)

7/30/2026: Top 5 stories on the HackerNoon homepage!

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1m read

DEV Community • 2026-07-30 16:05

Kubernetes: Visualizando Métricas com Grafana

🇺🇸 English version coming soon. O Prometheus (visto no artigo anterior desta série de addons) é excelente para coletar e armazenar métricas, mas sua interface nativa é bastante limitada para visualização. É aí que entra o Grafana: a ferramenta mais usada para transformar os dados coletados pelo Prometheus em dashboards visuais, com gráficos, alertas e painéis customizáveis. Pré-requisit...

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3m read

Google Developers Blog • 2026-07-30 16:03

How to use Google microbenchmarks for evaluating TPU performance

Google's open-source TPU microbenchmark suite provides developers with granular performance metrics across Network, Compute, HBM, Host Transfer, and Attention components to validate real-world hardware capabilities. By leveraging these benchmarks to establish a Roofline model, engineers can accurately diagnose whether their machine learning workloads are compute-, memory-, or network-bound. This e...

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1m read

DEV Community • 2026-07-30 16:02

Building a Transformer from Scratch in PyTorch

I trained my own transformer model from the ground up — no HuggingFace, no shortcuts. Here's the full breakdown: multi-head attention, positional encoding, training loops, and the mistakes that actually taught me how these things work. Why Build from Scratch? There's a massive gap between using a transformer and understanding one. I spent months fine-tuning pre-trained models through APIs — Groq,...

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8m read

DEV Community • 2026-07-30 16:01

Kubernetes: Automatizando Certificados TLS com Cert-Manager

🇺🇸 English version coming soon. Com o Ingress Controller já configurado (veja o artigo anterior desta série de addons), o cluster consegue rotear múltiplos domínios HTTP para os Services corretos. O próximo passo natural é habilitar HTTPS nesses domínios — e fazer isso manualmente, renovando certificados antes de expirarem, não escala bem conforme o número de domínios cresce. É exatamente esse pr...

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3m read

HackerNoon • 2026-07-30 16:00

Building for Shipaton 2026? Share Your Journey on HackerNoon and Compete for an Extra $2,500

Building for Shipaton 2026? Document your journey on HackerNoon and compete for an extra $2,500 in cash prizes.

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1m read

DEV Community • 2026-07-30 16:00

LLD Data Structures in Design Context: Inside a HashMap — Buckets, Collisions and Why Everything Still Works

"A HashMap is fast not because collisions never happen. It is fast because it knows how to handle them efficiently." In the previous articles, we built the foundation of HashMap thinking. We understood: Why fast lookup is an important system behaviour. Why unique keys are valuable. How hashing converts keys into predictable locations. Now let's go one level deeper. A natural question appe...

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6m read

HackerNoon • 2026-07-30 15:59

Prompt Engineering Is No More - Strategic Thinking Has Returned

When it came to using Large Language Models (LLMs), it used to be all about prompt engineering.

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1m read

Product Hunt — The best new products, every day • 2026-07-30 15:57

mectrics

Your Mac's vitals in the menu bar. Free and open source. Discussion | Link

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1m read

DEV Community • 2026-07-30 15:57

Designing a Trustworthy Keto Planning Tool: UX Lessons for Health Calculators

Health calculators sit in an awkward product category. Users want a fast, specific answer, but the inputs are personal, the underlying models contain assumptions, and a polished number can look more authoritative than it really is. A keto meal-planning product makes those tensions especially visible. It may estimate energy needs, suggest macronutrient ranges, organize foods, and produce a weekly ...

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5m read

Product Hunt — The best new products, every day • 2026-07-30 15:56

Gemini Robotics 2

Google's AI brain for the next generation of robots Discussion | Link

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1m read

DEV Community • 2026-07-30 15:56

Silent Failures: When Your AI Agent's Context Dies Without a Sound

Silent Failures: When Your AI Agent's Context Dies Without a Sound Engineering notes on diagnosing and protecting memory in conversational AI systems TL;DR A conversational AI agent was working. Code was clean. Tests were green. External diagnostics showed nothing wrong. But the agent was struggling — and couldn't tell anyone, because it didn't know how. This article cove...

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10m read